Improvement in cultivators



O. OLSON. Cultivator.

No. 218,561. Patented Aug. 12, I879.

ATTORNEY-S UNITED STATES PATENT OFFICE? I OLOF OLSON, OF RED OAKJUNCTION, IOWA, ASSIGNOR OF ONE-HALF HIS RIGHT TO LOUIS W. JOSEPH, OFSAME PLACE.

IMPROVEMENT IN CULTIVATORS.

Specification forming part of Letters Patent No. 218,561, dated August12, 1879; application filed June 21, 1879.

.To all whom it may con'cern Be it known that I, OLOF OLSON, of Red OakJunction, in the county of Montgomery and State of Iowa, have inventedcertain new and useful Improvements in Corn-Cultivators; and I do herebydeclare that the following is a full, clear, and exact description ofthe construction and operation of the same, reference being had to theannexed drawings, making a part of this specification, and to theletters and figures of reference marlred thereon.

Figure 1 of the drawings is a representation of a longitudinal sectionof my cultivator. Fig. 2 is a plan view, and Figs. 3, 4, 5, and 6 aredetail views.

Identical parts in the drawings are designated and referred to by thesame letters.

This invention has relation to cultivators; and consists in theimprovements in the construction of the same hereinafter fullydescribed, and particularly pointed out in the claims.

Ais the standard of the cultivator, audit is attached to the beam by thepivot-bolt a. A is an arm of the standard, which extends along the sideof the beam, and is provided with holes suitable to receive the; woodenpin a, which passes throughjhe metal plate a and into thecultivator-beam." By passing this pin through either of the holes in theseries the angle of the standard may be changed at will.

B is a shaft, which is journaled in the side pieces of the frame 11,which extends rearward from the axle, and is provided with the handcrank12 and the ratchet 12*. The pivoted arm b has a staple, b, which issuitably construct- .ed and located to engage the ratchet and prevent itfrom revolving; and b are cords or chains, which are wound upon theshaft, and connected to the cultivator-beams by the staples 12 nearthecultivators. Upon the vertical sides of the four ends of thecultivatorbeams O are the plates 0, rigidly attached, and provided withsuitable holes to receive the trunnions at of the sliding blocks D. Thesetscrews (1 engage suitable threads in the trunnions, and their innerends enter into annular grooves e in the sliding shafts E.

F are two-way sliding blocks, suitably constructed to be placed upon thehorizontal portion F of the axle and work freely thereon. The slidingshaft E works vertically in the outer or right-angled hole in the blockF, and is held in any desired position by means of the set-screw f,which is threaded in the block, and its inner end engages the slidingshaft E, and retains it at any desired position.

G G are two-way thimbles, cast in one piece, with their barrels at rightangles with each other. The horizontal barrel or tube gis placed on therod g of the frame of the cultivator and swings freely on the same. Thevertical barrel or tube 9 receives the shaft G. These vertical shaftsare held in any desired position by means of the set-screws g K arecollars placed upon the shafts G, and held in any desired position bymeans of the set-screws it. These collars are for holding thewhiffletrees in any desired position upon the shafts Gr. There are linksk, which connect the ring-hooks k and k which are freely secured to thelower ends of the shafts E and G.

The operation of this portion of my invention is that by means ofplacing the set-screws d in either of the annular grooves e of thesliding shafts E the fore end of the cultivator-beam may be verticallyadjusted. The vertical adjustment of the beams may also be accomplishedto any limited amount by means of the set-screw j, which will retain theshaft in any desired position. By means of these two adjusting devices Iam enabled to raise or lower the cultivator-beam the least practicableor greatest required distance; and by means of the set-screws k, foradjusting the position of the collar K, and the set-screw 9 which holdsthe shaft G in any desired position, I am enabled to adjust the heightof the draft to suit the height of the cultivator and preserve ahorizontal position for the draft links 70, which connect thedraft-shaft G and the cnltivator-shaft E.

L is an evener or double-tree centrally pivoted to the top of the frameby the bolt 1, and provided with metallic facings, against which theupper portion of the vertical part of the thimble of the shaft G restswhen the draft of the team is applied to the lower portion of the shaftG.

M is a lever pivoted by the bolt l, and extending rearward suitably toenable the operator to control it. The shackles f embrace the F portionof the axle and the horizontal portion of the sliding two-way blocks F.These shackles are connected by the bars f which are perforated by aseries of holes by which to adjust the distance between the shafts E.The operation of this feature of my invention is that the operator canat will change the horizontal position of the eultivators in relation tothe carriage while the cultivator is in operation without stopping ordelay, which I find to be a valuable feature.

By means of the shaft B, provided with the crank 'b and ratchet b andthe cords or chains 1), I can at will raise the cultivators clear of theground or set them at any required depth in the ground for work. Thehandles 0 are braced by the bars 02.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a cultivator, the two-way sliding blocks 1 F, provided with theset-scrcwsf, in combination with the portion of the cultivator-axle Iand the shaft I as and for the purposes sub- Stdllllall) as set forth.

2. In a cultivator, the two-way thimbles G G, provided with theset-screws g, in combination with shafts G G, the collars K, providedwith set-screws k, the double-tree L, and the link k ring-hooks I62, andshafts E, as and for the purposes substantially as set forth.

3. In a cultivator, the lever M, in combination with the bars f providedwith a series of adjusting-holes and. the shackles f and the slidingtwo-way blocks F, as and for the purposes substantially as set forth.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses at Red Oak, Iowa.

OLOF OLSON.

Witnesses:

M. I). UHEMBERLIN, Tnos. GRIFFITH.

